#include <bits/stdc++.h>

#define N 100050
#define inf 0x3f3f3f3f

using namespace std;

int n, ans = -inf;
int h[N];

int main(){
	freopen("duel.in", "r", stdin);
	freopen("duel.out", "w", stdout);
	
	cin >> n;
	for(int i = 1; i <= n; i++){
		int x;
		cin >> x;
		h[x]++;
		ans = max(ans, h[x]);
	}
	
	cout << ans;
	return 0;
}
